Gupta, M., & Gupta, S. Water and basic environmental technology: Resource management and pollution control.
Chicago-стиль цитированияGupta, Mukta, and Sunit Gupta. Water and Basic Environmental Technology: Resource Management and Pollution Control. New Delhi, Anmol Publications.
MLA-цитированиеGupta, Mukta, and Sunit Gupta. Water and Basic Environmental Technology: Resource Management and Pollution Control.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.